EP0256434A3 - Electric clock - Google Patents

Electric clock Download PDF

Info

Publication number
EP0256434A3
EP0256434A3 EP87111317A EP87111317A EP0256434A3 EP 0256434 A3 EP0256434 A3 EP 0256434A3 EP 87111317 A EP87111317 A EP 87111317A EP 87111317 A EP87111317 A EP 87111317A EP 0256434 A3 EP0256434 A3 EP 0256434A3
Authority
EP
European Patent Office
Prior art keywords
light sources
array
twelve
indicate
clock positions
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP87111317A
Other languages
German (de)
Other versions
EP0256434A2 (en
EP0256434B1 (en
Inventor
Klaus Dieter Prof. Dr. Med. Zang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Walter GmbH
Original Assignee
Walter GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6797329&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0256434(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Walter GmbH filed Critical Walter GmbH
Publication of EP0256434A2 publication Critical patent/EP0256434A2/en
Publication of EP0256434A3 publication Critical patent/EP0256434A3/en
Application granted granted Critical
Publication of EP0256434B1 publication Critical patent/EP0256434B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/02—Visual time or date indication means by selecting desired characters out of a number of characters or by selecting indicating elements the position of which represent the time, e.g. by using multiplexing techniques
    • G04G9/04—Visual time or date indication means by selecting desired characters out of a number of characters or by selecting indicating elements the position of which represent the time, e.g. by using multiplexing techniques by controlling light sources, e.g. electroluminescent diodes

Abstract

An electric timepiece having a square dial with corners at the twelve, three, six and nine o'clock positions has a first array of twelve light sources at one to twelve o'clock positions, a second array of four light sources which are inwardly adjacent the light sources of the first array at the twelve, three, six and nine o'clock positions, and a centrally located light source. The color and/or intensity of radiation issuing from the centrally located light source changes at midnight and at noon, and all of the remaining light sources are used to indicate minutes. The light sources of the second array indicate single-minute periods, and the light sources of the first array indicate five-minute periods. In addition, the light sources of the first array are used to indicate hours in colors or hues other than those used to denote five-minute periods.
EP87111317A 1986-08-11 1987-08-05 Electric clock Expired - Lifetime EP0256434B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8621553U 1986-08-11
DE8621553U DE8621553U1 (en) 1986-08-11 1986-08-11

Publications (3)

Publication Number Publication Date
EP0256434A2 EP0256434A2 (en) 1988-02-24
EP0256434A3 true EP0256434A3 (en) 1989-12-27
EP0256434B1 EP0256434B1 (en) 1994-11-02

Family

ID=6797329

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87111317A Expired - Lifetime EP0256434B1 (en) 1986-08-11 1987-08-05 Electric clock

Country Status (5)

Country Link
US (1) US4803672A (en)
EP (1) EP0256434B1 (en)
AT (1) ATE113734T1 (en)
CA (1) CA1288249C (en)
DE (2) DE8621553U1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2204429B (en) * 1987-04-24 1991-09-04 Salim Emile Kahil Timepiece.
DE4111415A1 (en) * 1991-04-09 1992-10-15 Dietrich Von Dipl Ing Haebler Visual time display using quinary matrix presentation - has columnar construction with minimum number of modular light sources giving clear resolution to 1 minute of time
US5818798A (en) * 1996-04-19 1998-10-06 Howard Zaretsky Timepiece with integral alphanumeric display
US5896348A (en) * 1997-06-13 1999-04-20 Lyon; Zachary W. Method and timepiece for displaying time using grouped binary indicators
FR2838838B1 (en) * 2002-04-19 2004-07-30 Barth Daniel Benedict JEWELERY WATCH, PARTICULARLY A BRACELET WATCH WITH LIGHTED DISPLAY
GB2391334A (en) * 2002-07-27 2004-02-04 George Ernest Dunning Analogue display for a clock using arrays of lamps
DE102004058246A1 (en) * 2004-12-02 2006-06-08 Städtler, Marc-Michael, Dipl.-Ing. Analog indicator
US7333398B2 (en) * 2006-01-26 2008-02-19 Cube Root, Inc. Device for the indication of elapsed time
US20080175106A1 (en) * 2007-01-22 2008-07-24 Michael Vikesland Chronometric display means
GB2453714B (en) * 2007-09-06 2010-06-02 Gro Group Int Ltd Device
JP1526455S (en) * 2014-09-02 2015-06-15
JP1521361S (en) * 2014-09-16 2015-04-13

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3145526A (en) * 1961-07-13 1964-08-25 John J Kroon Luminous electric clock
US4007583A (en) * 1975-05-22 1977-02-15 Rca Corporation Electronic timepiece
FR2343276A1 (en) * 1976-03-04 1977-09-30 Eden Shoshana Electronic clock with positional diode display - has resetting circuit employing rheostat coupled to switch
US4068465A (en) * 1975-07-14 1978-01-17 Bernard M. Licata Clock using alternating current cycle counting
FR2376450A1 (en) * 1976-12-29 1978-07-28 Cetehor LED analogue time display - uses two concentric sets of radial display elements to simulate hours and minutes hands
US4106281A (en) * 1976-06-28 1978-08-15 Freeman Alfred B Time displays for electronic time keeping devices
DE2919563A1 (en) * 1979-05-15 1980-11-20 Jovan Dr Ing Antula Quasi-analog time indication system - uses changeover from higher time indicator unit to lower one, effected in middle of time value range of next time indicator unit
US4254487A (en) * 1979-06-18 1981-03-03 Lee Shu Tso Electronic time piece

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2169208A (en) * 1937-05-26 1939-08-15 Mark J Saperston Electrically operated clock
US3596462A (en) * 1969-01-31 1971-08-03 Royce Hayes Electronic clock
DE2410527C3 (en) * 1973-03-08 1983-11-03 Casio Computer Co., Ltd., Tokyo Electronic time display device
US3958409A (en) * 1974-09-12 1976-05-25 Solomon Manber Watch display
US4041692A (en) * 1976-01-08 1977-08-16 Amelect Incorporated Electronic clock having time indicating light display
SE7701172L (en) * 1976-02-17 1977-08-18 Leybold Heraeus Gmbh & Co Kg STOP HOUR FOR SCIENCE TEACHING
JPS5312666A (en) * 1976-07-21 1978-02-04 Seiko Instr & Electronics Ltd Digital display type electronic watch
DE2652866A1 (en) * 1976-11-20 1978-05-24 Agfa Gevaert Ag Electronic watch with analogue display - uses radial semiconductor display elements arranged on one or more carrier discs
US4702615A (en) * 1986-12-24 1987-10-27 Karel Havel Analog display timepiece

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3145526A (en) * 1961-07-13 1964-08-25 John J Kroon Luminous electric clock
US4007583A (en) * 1975-05-22 1977-02-15 Rca Corporation Electronic timepiece
US4068465A (en) * 1975-07-14 1978-01-17 Bernard M. Licata Clock using alternating current cycle counting
FR2343276A1 (en) * 1976-03-04 1977-09-30 Eden Shoshana Electronic clock with positional diode display - has resetting circuit employing rheostat coupled to switch
US4106281A (en) * 1976-06-28 1978-08-15 Freeman Alfred B Time displays for electronic time keeping devices
FR2376450A1 (en) * 1976-12-29 1978-07-28 Cetehor LED analogue time display - uses two concentric sets of radial display elements to simulate hours and minutes hands
DE2919563A1 (en) * 1979-05-15 1980-11-20 Jovan Dr Ing Antula Quasi-analog time indication system - uses changeover from higher time indicator unit to lower one, effected in middle of time value range of next time indicator unit
US4254487A (en) * 1979-06-18 1981-03-03 Lee Shu Tso Electronic time piece

Also Published As

Publication number Publication date
ATE113734T1 (en) 1994-11-15
EP0256434A2 (en) 1988-02-24
US4803672A (en) 1989-02-07
DE8621553U1 (en) 1987-06-04
DE3750713D1 (en) 1994-12-08
CA1288249C (en) 1991-09-03
EP0256434B1 (en) 1994-11-02

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